7DPA

Cryo-EM structure of the human ELMO1-DOCK5-Rac1 complex


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.80 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

wwPDB Validation   3D Report Full Report


This is version 1.0 of the entry. See complete history


Literature

Cryo-EM structure of the human ELMO1-DOCK5-Rac1 complex.

Kukimoto-Niino, M.Katsura, K.Kaushik, R.Ehara, H.Yokoyama, T.Uchikubo-Kamo, T.Nakagawa, R.Mishima-Tsumagari, C.Yonemochi, M.Ikeda, M.Hanada, K.Zhang, K.Y.J.Shirouzu, M.

(2021) Sci Adv 7

  • DOI: 10.1126/sciadv.abg3147
  • Primary Citation of Related Structures:  
    7DPA

  • PubMed Abstract: 
  • The dedicator of cytokinesis (DOCK) family of guanine nucleotide exchange factors (GEFs) promotes cell motility, phagocytosis, and cancer metastasis through activation of Rho guanosine triphosphatases. Engulfment and cell motility (ELMO) proteins are binding partners of DOCK and regulate Rac activation ...

    The dedicator of cytokinesis (DOCK) family of guanine nucleotide exchange factors (GEFs) promotes cell motility, phagocytosis, and cancer metastasis through activation of Rho guanosine triphosphatases. Engulfment and cell motility (ELMO) proteins are binding partners of DOCK and regulate Rac activation. Here, we report the cryo-electron microscopy structure of the active ELMO1-DOCK5 complex bound to Rac1 at 3.8-Å resolution. The C-terminal region of ELMO1, including the pleckstrin homology (PH) domain, aids in the binding of the catalytic DOCK homology region 2 (DHR-2) domain of DOCK5 to Rac1 in its nucleotide-free state. A complex α-helical scaffold between ELMO1 and DOCK5 stabilizes the binding of Rac1. Mutagenesis studies revealed that the PH domain of ELMO1 enhances the GEF activity of DOCK5 through specific interactions with Rac1. The structure provides insights into how ELMO modulates the biochemical activity of DOCK and how Rac selectivity is achieved by ELMO.


    Organizational Affiliation

    RIKEN Center for Biosystems Dynamics Research, 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama, Kanagawa 230-0045, Japan. mikako.shirouzu@riken.jp.



Macromolecules
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Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Dedicator of cytokinesis protein 5A, D1,648Homo sapiensMutation(s): 1 
Gene Names: DOCK5
UniProt & NIH Common Fund Data Resources
Find proteins for Q9H7D0 (Homo sapiens)
Explore Q9H7D0 
Go to UniProtKB:  Q9H7D0
PHAROS:  Q9H7D0
Entity Groups  
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UniProt GroupQ9H7D0
Protein Feature View
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Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Ras-related C3 botulinum toxin substrate 1B, E184Homo sapiensMutation(s): 1 
Gene Names: RAC1TC25MIG5
EC: 3.6.5.2
UniProt & NIH Common Fund Data Resources
Find proteins for P63000 (Homo sapiens)
Explore P63000 
Go to UniProtKB:  P63000
PHAROS:  P63000
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UniProt GroupP63000
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Entity ID: 3
MoleculeChainsSequence LengthOrganismDetailsImage
Engulfment and cell motility protein 1C, F733Homo sapiensMutation(s): 0 
Gene Names: ELMO1KIAA0281
UniProt & NIH Common Fund Data Resources
Find proteins for Q92556 (Homo sapiens)
Explore Q92556 
Go to UniProtKB:  Q92556
PHAROS:  Q92556
Entity Groups  
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UniProt GroupQ92556
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.80 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

Structure Validation

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Entry History 

Revision History  (Full details and data files)

  • Version 1.0: 2021-08-04
    Type: Initial release